Fifty years ago, Bethesda guitarist Kim Kane formed the Slickee Boys to record his own self-described “weird original” song, as well as psychedelic and garage rock covers. That same year, they self-released their debut EP, Hot and Cool. Now the most recent version of the band, with Kane and original guitarist Marshall Keith, are reuniting for a celebration five decades in the making. On May 30, the Slickee Boys return to the 9:30 Club, where the…